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3 years ago

Name three common

Chemistry

1 answer:

nlexa [21]3 years ago

6 0

Answer:

PH value greater than 7=baking soda

PH value less than 7=vinegar

PH value equal to 7=pure water

hope it helps.

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Will larger crystals will be formed when molten rock cools more slowly

STatiana [176]

Yes, the crystals will have more time to form and therefore are more likely to be larger compared to one that is cooled quickly.

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3 years ago

Read 2 more answers

List all possible oxidation numbers for the elements. 21. Al

Alex73 [517]

Answer:

21. Al (Aluminium)

+3 (most common), -1, -2, +1, +2

22. Bi (Bismuth)

+3 (most common), -3, -2, -1, +1, +2, +4, +5

23. Ni (Nickel)

+2 (most common), -2, -1, 0,+1, +3, +4

24. Xe (Xenon)

0 (most common), +1, +2, +4, +6, +8

25. Pb (Lead)

+2 (most common), +4 (most common), -4, -2, -1, +1, +3

Explanation:

Now we proceed to present the answers for each element:

21. Al (Aluminium)

+3 (most common), -1, -2, +1, +2

22. Bi (Bismuth)

+3 (most common), -3, -2, -1, +1, +2, +4, +5

23. Ni (Nickel)

+2 (most common), -2, -1, 0,+1, +3, +4

24. Xe (Xenon)

0 (most common), +1, +2, +4, +6, +8

25. Pb (Lead)

+2 (most common), +4 (most common), -4, -2, -1, +1, +3

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3 years ago

How is an analogy different from a metaphor

iragen [17]

An analogy is a comparison between two things
Example: banana is to yellow as red is to apple OR banana:yellow as red:apple

A metaphor is a figure of speech where a word or phrase is applied and it’s not literal.
Example: it’s raining cats and dogs. It’s not really raining literal cats and dogs. It’s just raining really hard.

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4 years ago

In any chemical reaction, the rate of the reaction can be increased by

mixas84 [53]

Answer:

it can be increased by the number of atoms on each side

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2 years ago

Kepler’s second law of planetary motion states which of the following?

aev [14]

Kepler stated three laws of planetary motion.

First law states that the pathway of a planet is an ellipse with the Sun at one of the foci.

Second law states that an imaginary line joining the Sun and a planet sweeps out equal areas during equal lengths of time.

Third law states that the square of the period of the orbit of a planet is directly proportional to the cube of the length of the distance from the Sun.

Therefore, the answer is that Kepler's second law of planetary motion states that planets cover the same area during equal time periods.

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3 years ago